/Engine/Source/Runtime/Engine/Classes/Engine/StaticMesh.h
Sets vertex color data by position. Map of vertex color data by position is matched to the vertex position in the mesh and nearest matching vertex color is used.
void SetVertexColorData ( const [TMap](API\Runtime\Core\Containers\TMap)< FVector3f, [FColor](API\Runtime\Core\Math\FColor) > & VertexColorData )